Used KELLENBERGER VARIA RS 175/1000 CNC Grinder

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Product Highlight

Used KELLENBERGER VARIA RS 175/1000 CNC grinder is a Swiss CNC cylindrical grinder built for precision machining of shafts, spindles and rotational components. This machine features a FANUC 31i control, 1,000 mm grinding length, 349 mm maximum grinding diameter and a dual external grinding configuration. Its long-workpiece capacity and reference micron-level grinding results make it a strong option for precision engineering, automotive, aerospace, hydraulic and general machinery applications.

Product Description

Used KELLENBERGER KEL-VARIA RS 175/1000 CNC cylindrical grinding machine, manufactured in Switzerland, is designed for high-precision external cylindrical grinding of shafts, spindles and other rotational components.

Equipped with a FANUC 31i CNC control, 1,000 mm grinding length, 349 mm maximum grinding diameter and dual external grinding setup, it offers a strong combination of precision, flexibility and long-workpiece capacity.

A reference grinding test on an Ø80 × 800 mm shaft indicated approximately 0.3 μm roundness and around 1 μm cylindricity. These values are reference test results rather than guaranteed production tolerances, as final accuracy depends on setup, tooling, wheel condition, material and operating environment.

The machine is currently available for inspection in Kunshan, China.

Technical Specifications

Specification	Details
Machine Condition	Used / Pre-Owned
Brand	KELLENBERGER
Model	KEL-VARIA RS 175/1000
Machine Type	CNC Cylindrical Grinding Machine
Country of Origin	Switzerland
CNC Control	FANUC 31i
Center Height	175 mm
Distance Between Centers	1,000 mm
Grinding Length	1,000 mm
Maximum Grinding Diameter	349 mm
Maximum Workpiece Weight Between Centers	100 kg
X-Axis Travel	320 mm
Z-Axis Travel	1,150 mm
Grinding Configuration	Dual External Grinding Setup
Left Grinding Wheel Size	Ø400 × 63 × 127 mm
Left Grinding Wheel Speed	1,500–2,200 rpm
Grinding Wheel Peripheral Speed	32 m/s
Rapid Feed Rate	10 m/min
Secondary / Work Spindle Speed	8–800 rpm, according to supplied machine data
Workhead Spindle Taper	MT5
Tailstock Taper	MT4
Tailstock Stroke	30 mm
Chuck Diameter	200 mm
Machine Weight	Approx. 4,800 kg
Power Supply	3 × 400 V, 50 Hz
Machine Dimensions	Approx. 4,840 × 2,260 × 2,120 mm
Precision System	Hydrostatic configuration on key machine axes/spindle according to supplied configuration
Reference Roundness Result	Approx. 0.3 μm
Reference Cylindricity Result	Approx. 1 μm
Reference Test Workpiece	Ø80 × 800 mm shaft

Accuracy note: The roundness and cylindricity figures above are reference test results for this used machine and should not be interpreted as guaranteed accuracy for every workpiece or grinding process.

Applications & Suitable Grinding Jobs

Used KELLENBERGER VARIA RS 175/1000 CNC grinder is particularly suitable for manufacturers requiring precision OD grinding of medium and long rotational components.

Typical applications include:

Precision shaft and long shaft grinding
Machine tool spindle grinding
Motor and rotor shaft finishing
Gearbox and transmission shaft grinding
Hydraulic and pneumatic component grinding
Precision bearing component production
Automotive powertrain components
Aerospace shaft and rotating component machining
Toolholder and precision tooling production
Pump shaft and valve component grinding
Precision fixtures and gauge manufacturing
Automation equipment components
Semiconductor equipment precision parts
Mold and tooling components
Small-batch and high-mix precision manufacturing

The 1,000 mm center distance makes the machine especially attractive for workshops that need to process long precision shafts without moving to a much larger cylindrical grinder.

FAQ

Can this machine grind shafts up to 1 meter long?

Yes. The machine has a 1,000 mm distance between centers and approximately 1,000 mm grinding length, making it suitable for many long shafts, spindles and cylindrical components. Actual usable length will depend on the workholding and grinding setup.

What is the maximum grinding diameter of the KEL-VARIA RS 175/1000?

The listed maximum grinding diameter is approximately 349 mm, with a center height of 175 mm.

What grinding accuracy can I expect from this used KELLENBERGER grinder?

A reference test on an Ø80 × 800 mm workpiece indicated approximately 0.3 μm roundness and around 1 μm cylindricity. Actual production accuracy depends on machine setup, grinding wheel condition, dressing, workholding, material, temperature and process parameters.